Question

AYUDAAAAA ..... MARTHA COMPRA UNA ARROBA Y MEDIA DE PAPAS. ¿CUANTAS LIBRAS COMPRO?

Answer 1

   1 arroba = 25 libras
1/2 arroba = 12.5 libras
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               37.5 libras de papas

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   1 arroba ---- 25 libras
1.5 arroba ----   x

         x = 37.5 libras de papas